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Mateus3164
@Mateus3164
July 2022
1
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Resolva As Seguintes Equações Do 2º Grau
1-) x²-7x=0
2-) x²+5x=0
3-) 4x²-9x=0
4-) 3x²+5x=0
5-) 4x²-12x=0
6-) 5x²+x=0
7-) x²+x=0
8-) 7x²-x=0
9-) 2x²=7x
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iLucaas
Nessa equação de segundo grau, temos a e b, então devemos colocar em evidência.
1) x(x-7)
x=0 e 7
2)x(x+5)
x=-5 e 0
3)x(4x-9)
4x=9
x=9/4 e 0
4)x(3x+5)
3x=-5
x=-5/3 e 0
5)x(4x-12)
4x=12
x=3 e 0
6)x(5x+1)
x=1/5 e 0
7)x(x+1)
x=-1 e 0
8)x(7x-1)
7x=1
x=1/7 e 0
8) 2x²-7x=0
x(2x-7)
2x=7
x=7/2 e 0
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1) x(x-7)
x=0 e 7
2)x(x+5)
x=-5 e 0
3)x(4x-9)
4x=9
x=9/4 e 0
4)x(3x+5)
3x=-5
x=-5/3 e 0
5)x(4x-12)
4x=12
x=3 e 0
6)x(5x+1)
x=1/5 e 0
7)x(x+1)
x=-1 e 0
8)x(7x-1)
7x=1
x=1/7 e 0
8) 2x²-7x=0
x(2x-7)
2x=7
x=7/2 e 0